list1 = [1, 2, 3, 4, 5]
for i in range(len(list1)):
    print(list1[i],end=' ')
print()
print('--------------------------')
for i in  range(len(list1)):
    print(list1[i],end=' ')
print()
print('--------------------------')
list1.append(6)
print(list1)

list2 =[8,9]
list1.extend(list2)
print(list2)
print(list1)
list1.insert(2,66)
print(list1)

list1.sort() #升序 从小到大
print(list1)
list1.reverse()
print(list1)
list1.sort(reverse=True)

list3 = [14,22,3,4,5]
list4=sorted(list3) #返回一个新列表，源列表不变
print(list3)
print(list4)


num = list4.pop()
print(num)

set1 = {1,2,3,4,5}
for i in set1:
    print(i,end=' ')


dict1 = {'name':'zhangsan','age':18}
dict1['sex'] = 'male' #add
dict1['age'] = 19 #update

for key, value in dict1.items():
    print(key,value)


